Tony Jones (Brad Maule), upset that he is not Michael's father, kidnaps the boy. Robin tells A.J. that Michael is his son, and Carly attempts a marriage with A.J. Afterwards she marries Sonny, who threatens A.J. until he gives up his paternal rights. Upon Sonny and Carly (Maurice Benard and Tamara Braun)'s first divorce in 2001, Sonny legally adopts Michael. In 2002 and 2003, respectively, Michael (Dylan Cash) gets a half-sister, Kristina Davis, and a brother, Morgan Corinthos. In February 2005, A.J. and Faith Rosco (Cynthia Preston) kidnap Michael, Morgan and Kristina. A.J. fakes Michael's death and attempts to turn him against his parents. Jason and Sam McCall (Kelly Monaco) manage to save him. Michael witnesses A.J.'s supposed murder in 2005, and is initially believed to have killed him. Michael makes several attempts to reunite his parents, but eventually forms a bond with his stepfather Jasper Jacks (Ingo Rademacher). When a serial killer begins terrorizing Port Charles, claiming the lives of Emily and his nanny Leticia (Jessi Morales), and almost his mother, Michael takes it upon himself to protect his family by purchasing a gun. After accidentally shooting his father's girlfriend Kate Howard (Megan Ward), Michael runs away from home. When he and Carly (Laura Wright) are reunited in a local warehouse, they are nearly killed in an explosion. Michael is rendered comatose in April 2008 after being shot in the head when a sniper tries to kill Sonny. Carly, Sonny, and Jason all hope for Michael to wake up and come back to them. 2009–2011 After the risky surgery, Michael wakes up exhibiting uncontrollable fits of rage. Carly; who is dealing with a high-risk pregnancy, agrees to send Michael to live with the Quartermaines. Believing his family will be better off, Michael and Kristina (Lexi Ainsworth) skip town when he mistakenly believes that he caused an accident that led to his stepmother, Claudia (Sarah Brown)'s miscarriage. The teens soon return, and Michael suddenly begins uncovering memories from the coma. He eventually remembers that Claudia was the one responsible for his shooting. He goes to tell Sonny, only to find him confronting Claudia for the shooting. Claudia takes Carly hostage, and escapes. Michael is on his way out of town when he discovers Claudia's car abandoned on the side of the road. Trying to stop Claudia from stealing his new-born sister, Josslyn Jacks, Michael kills her and is forced to